Rotary food slicing machine



ROTARY FOOD SLICING MACHINE Filed July 24, 19 .8

(Ittornegs Patented May 2, 1950 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to slicing machines and, in particular, to foodslicing machines.

One object of this invention is to provide a food slicing machine havinga central replaceable hub or disc mounting for the cutting blade,preferably flanged, for which a similar part may be substituted in theevent of wear.

Another object of this invention is to provide a food slicing machine,of the foregoing type, having a resilient concave tension disc whichengages the peripheral portion of the cutter disc support and therebyreduces any tendency of the cutter disc to wobble and absorbs variationsin manufacture or irregularities resulting from wear during use.

A still further object is to provide a food slicing machine having adished or hollow-ground cutter disc, preferably saw-toothed, whichcauses the already cut portions of the food to spread apart afterpassing the cutting edge of the disc, thus greatly reducing frictionbetween the food and the sides of the disc and eliminating the need forany set in the teeth.

In the drawings:

Figure 1 is a side elevation of a food slicing machine according to apreferred form of the invention;

Figure 2 is a top plan view of the food slicing machine shown in Figure1;

Figure 3 is a vertical section taken along the line 33 in Figure 1; and

Figure 4 is a vertical section taken along the line 4--4 in Figure 1.

Referring to the drawings in detail, Figures 1 and 2 show a food slicer,generally designated |0, according to the invention. The machine I U-preferably embodies a base [I to which is affixed a combination guardand support l2 by means of fasteners l3. Included in the guard andsupport I2 is a guard flange |4. Also integral with part I2 is a boss l5containing a bore |5a in which a shaft I6 is rotatably mounted. Mountedon one end of the shaft I6 is a crank I! mounted by means of a fastenerl8. Mounted on the other end of shaft "3 is a pinion I9 meshing with agear 2|]. The gear 20 has a central bore 20a by which it is rotatablymounted upon a flanged bearing member 2|, which forms a stationary hub,also containing a central threaded bore to receive a fastener 22,preferably a threaded screw.

The fastener 22 (Figure 3) serves to secure the bearing member 2| to asecond boss 23 integral with the guard and support l2 and extendinginward. The boss 23 also contains a central bore to admit a fastener 22which is common to parts 2| and 23. Separating hub 2| from boss 23 is aresilient concave tension disc 24, the purpose of which is to providepressure to force gear 23 against flange 25 of the hub or bearing member2|, thus preventing it from wobbling. Extending through parts 2|, 23 and24 is a second bore containing an aligning pin 26, the purpose of whichis to maintain the aforementioned three parts in a constant positionrelative to one another. Attached to the face of gear 2|! by means offasteners 21, is cutter disc 28, hollowed out or dished in such afashion that its edges, preferably toothed, extend outward and forward.Within the base I of the device is an aperture 29 to admit the loweredge of cutter disc 28, thus permitting it to turn freely, unobstructedby base Surrounding the upper end of this aperture 29 is a countersunkmetal strip 30 secured to base I l by fasteners 3|.

The food slicing machine l0 includes an adj ustable stop or gaugingdevice (Figure 4) generally designated 32, for determining the thicknessof. the food to be cut. This features a vertical plate: 33 on a planeparallel to that of the cutter disc. Attached to, or integral with, thisplate 33 area threaded bar 34 and a slide bar 35; both parallel barspass through apertures in parallel supporting members 36 attached tobase by fasteners 31. Thus, the vertical plate 33, which comes intodirect contact with the food, can be moved toward or away from the planeof the cutter disc. Adjustment of position of this part can be made bymeans of a rotatably threaded wheel nut 38, preferably knurled, mountedbetween supports 36 upon, and engaging with, the threaded bar 34. Thepurpose of slide bar 35 is to guide plate 33 and to prevent it fromrotating around the axis of bar 34. Extending between supports 36 aretwo spacing members 39.

In the operation of the machine of this invention, the wheel nut 38 isrotated to adjust the stop or gauging device 32 to the positionproducing the desired thickness of the food slice. The food is thenplaced upon the base against plate 33 and moved toward cutter disc 28,crank I! being turned at the same time to rotate the disc.

What I claim is:

1. A slicing machine comprising a base, a frame structure mounted onsaid base and including a stationary hub projecting forwardly from saidframe structure and having a retaining flange on the forward endthereof, a rotary cutter support rotatably mounted on said hub inengagement with said flange, a rotary cutter connected to said support,mechanism for rotating said cutter, and an axially yieldable springmember 3 mounted on said structure and engageable with the peripheralportions of said cutter support for urging said cutter support forwardlyagainst said flange, said spring member having its central portioninterposed between said hub and said frame structure and clampedtherebetween.

2. A slicing machine comprising a base, a frame structure mounted onsaid base and including a stationary hub projecting forwardly from saidframe structure and having a retaining flange on the forward endthereof, a rotary cutter support rotatably mounted on said hub inengagement with said flange, a rotary cutter connected to said support,mechanism for rotating said cutter, and an axially yieldable springmember mounted on said structure and engageable with said cutter supportfor urging said cutter support forwardly against said flange, saidspring member engaging the peripheral portion of said cutter support.

3. A slicing machine comprising a base, a

:frame structure mounted on said base and including a stationary hubprojecting forwardly :from said frame structure and having a retainlingflange on the forward end thereof, a gear rotatably mounted on said huband engageable with said flange, a rotary cutter connected to said gear,mechanism for rotating said cutter, and an axially yieldable springmember mounted on said structure and engageable with the peripheralportion of said gear forwardly for urging said gear against said flange.

ALBERT SPORKET.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number 7 Name Date 1,473,658 Wolff Nov. 13, 19231,475,392 J aquette Nov. 17, 1923 2,090,650 Vant Aug. 24, 1937 FOREIGNPATENTS Number Country Date 484,596 Germany Oct. 19, 1929 754,472 FranceAug. 28, 1933 701,206 Germany Jan. 10, 1941

